I will definitely check into that. I am flying solely with American Airlines, although my second flight is code-shared with Qantas. I know they do not assume liability for such things...I do however have travel insurance that may or may not cover it. The good thing is that the value of this case is not all that much, so if something happened to it, it wouldn't be the end of the world. However, I will check into purchasing additional insurance through the airline just in case!
It is very well packed, so I'm hoping it makes it out safe and sound!